Ruggedly good-looking and greener than bricks and concrete, Petra Heights are made of three-metre slabs of rough rock. Could they herald a new stone age? Our writer fires up his FlintmobileThere’s been a geological eruption on London’s Finchley Road. Great chunks of pink basalt and igneous larvikite appear to have exploded from the railway cutting, shooting skywards to form teetering towers. Anyone trying to find Finchley Road & Frognal station need wonder no more: just look for the multistorey Stonehenge.Countless apartment towers have sprouted above London’s stations in recent years, a result of public transport-oriented policies, but none have looked like the Flintstones were in charge. Continue reading...